自然密度 的英文怎麼說

中文拼音 [rán]
自然密度 英文
dry bulk density
  • : Ⅰ代詞(自己) self; oneself; one s own Ⅱ副詞(自然;當然) certainly; of course; naturally; willin...
  • : Ⅰ形容詞(對; 不錯) right; correct Ⅱ代詞(如此; 這樣; 那樣) so; like that Ⅲ連詞[書面語] (然而)...
  • : Ⅰ名詞1 (秘密) secret 2 [紡織] (密度) density 3 (姓氏) a surname Ⅱ形容詞1 (距離近; 空隙小)...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • 自然 : 自然at ease; natural; free from affectation
  1. In this paper, based on land use maps of 1976, 1988, 2003, which were interpreted from the landsat mss / tm / etm imageries, and the map of main road, with the buffer analysis tool in arcgis 8, we studied the land use and land cover change on the two sides of the main roads in xishuangbanna, then we studied the impact of population density and the topographic factor on road effects. during the study both the comprehensive land use dynamic degree model and the land use degree comprehensive index model are taken into account, we put forward a compensatory model ? “ amendatory comprehensive land use dynamic degree model ”

    由於人類活動干擾強加大,公路效應深不斷擴展, 1976年為5km , 1988年為7km , 2003年達到11km ;受、社會條件的影響,不同路段的公路效應存在較大差異,甚至同一路段兩側效應也各不相同。 1976年至2003年,距公路不同距離范圍內的人口都在增加,且距離公路越近,人口數量越大、增長越快,人口分布有向公路兩側聚集的趨勢。選取人口為大、中、小三個樣區分別分析公路效應的范圍表明,人口
  2. Third, it is this " moment " of the segment of space - time which based on the the philosophy of the nature and describing the mechanical movement that symbolize the transform from the view of integralization in classical atomism of mathematics to the view of integralization of modern real number

    另外,正是基於新的哲學的、作為描述機械運動的時空片段的「瞬」標志著古典數學原子論的積分觀向現代的分割實數連續統的積分觀的轉化,而現代數學的微分概念更是直接源於描述機械運動的速和與運動軌跡切相關的曲線的切線問題。
  3. Studies by hargrave and geen estimated natural community graz - ing rates by measuring feeding rates of individual zooplankton species in the laboratory and then computing community grazing rates for field conditions using the known population density of grazers

    由哈格雷夫( hargrave )和吉恩( geen )所進行的研究,對條件下的群落食草比例進行了估計,其手段是通過測量出實驗室內單獨的浮遊動物種類的結食比例,後利用已知的食草動物種群,計算出實地狀況下的群落食草比例。
  4. In the natural condition, the following five stages are the plant restoration and succession process of luota : populus adenopoda shrub forest, rhus chinensis, pyracantha fortweana shrub forest, liquidambar formosana, corizria sinica forest, pinus massoniana, carpinus rurczaninowii forest, karst evergreen - deciduous forest

    只有少數林窗存在。恢復林在植被恢復程上遠不如喀斯特常綠落葉林,只在閉的灌木叢中分佈著少許高大的喬木。
  5. Elemental sulfur is a kind of most promising cathode material for the next generation lithium batteries, due to its the highest specific capacity, abundant resources, and low toxicity

    單質硫因具有很高的能量、豐富的資源和環境友好等多種優勢,成為下一代鋰電池中最有發展前景的正極材料之一。
  6. Secondly, the core conception of cognitive towards information science is " human as essence ", and bring forward that the information system is one that can boost up and magnify the existence value, ability and specialty of " human ", and provide users a system which is active and unforced, rather than force users to arduously adapt system. thirdly, from the visual angle of cognitive, information - seeking or information - using is a kind of cognitive behavior in essence. fourthly, cognitive style is the development trend of future information retrieve system, it can reveal the thinking - process of users during retrieving on - line, in order to help users to develop their knowledge configuration

    首先,認知觀可集成情報科學的相關領域,從而為形成統一、有效的情報科學提供體系結構;第二,情報學認知觀把「以人為本」作為它的核心觀念,提出情報系統設計的任務是要設計出增強和放大「人」的存在價值、能力和特長的系統,使提供給用戶的情報系統是一種積極,而不是要求他們花力氣去適應的系統;第三,從認知角來看,情報查尋和利用從根本上說是一項認知行為;第四,認知風格將是未來情報檢索系統的發展趨勢,這樣可以揭示聯機檢索過程中的用戶思維過程,以便有助於用戶知識的發展;第五,知識的進化與認知活動有切關系,人的知識結構對外來信息的吸附、同化、選擇、建構和實現社會化的過程,其實就是知識的進化;第六, 「知識結構」將成為情報學認知觀研究的重點。
  7. The result shows that the compressive strength of concrete under natural variational low temperatural curing is higher than the compressive strength of concrete under permanent low temperatural curing and the pore porosity under natural variational low temperatural curing is less than the compressive strength of concrete under permanent low temperatural curing ; the compactibility of concrete is good with fa ( < 15 % ) and sf ( < 8 % )

    結果當摻合料摻量相同時,變低溫( - 15 ~ 5 )養護條件下混凝土抗壓強高於恆低溫( - 10 )養護條件下混凝土抗壓強,孔隙率要低於恆低溫( - 10 )養護條件下混凝土的孔隙率;當單摻粉煤灰時摻量低於15 % 、單摻硅灰時摻量低於8 % ,低溫混凝土的實性較好。
  8. The usefulness of chaos in cryptography depends on the natural relationship between the two research areas : strong dynamical properties of chaotic systems imply strong cryptographical properties of cryptosystems, and the basic way to design cryptosystems containing good strong cryptographical properties implies quasi - chaos

    這一想法來於混沌理論和傳統碼學之間的聯系:一個強的混沌系統的動力學特性大致對應著高強碼系統的某些安全特徵,而具有良好混合性的傳統碼系統又暗示著擬混沌現象。
  9. Because of the intrinsic relationship between chaotic systems and cryptosystems : strong dynamical proterties of chaotic systems imply strong cryptographical properties and strong cryptographical properties imply quasi - chaos. chaotic systems, which act as natural cryptosystems, are applied into the cryptography

    由於混沌系統和碼學之間存在著一些聯系:強混沌系統的動力學特性大致對應著高強碼系統的某些安全特性,而具有良好混合性的傳統碼系統又暗含著擬混沌現象,混沌系統作為一種天碼系統,被引入到碼學領域。
  10. " the majority of the proposed country park is hilly areas and upland valleys covered with natural woodland and unspoiled streams. also of high conservation value are the well - established areas of secondary woodlands, developed montane forests and fresh water habitats

    建議中的擴建范圍大部分都是高山及高地幽谷,有不少天林木和未受污染的溪流。山區中茂的次生林地、高地樹林及淡水生境均具有高護理價值。
  11. Density and distributional patterns of seed harvester ant messor aciculatus and the seasonal moving behavior of castes in natural nest

    針毛收獲蟻社群與分佈及社群各品級在穴巢中的季節遷移行為
  12. In the third chapter, the influence of current density, solution concentration, erosion time and aging in ambient air on the pl spectra of ps suggests that peak would blue shift with current density increasing, and with erosion time and aging time prolonging ; with the increasing of solution concentration, peaks would red shift when solution concentration less than 1 : 1 but blue shift when solution concentration greater than 1 : 1. above phenomena can be explained by quantum confinement and light center model, but do not deny the action of si - h bonding and defect on the surface in the process of photoluminescence. at present, radiation mechanism is still one of the primary problems in the study of ps

    在第z三章中;通過對比,分析了電流、陽極化時間、溶液濃以及i氧化時間對多孔硅光致發光光譜的影響,認為在一定的范圍內,多i孔硅的發光峰位會隨電流的增大而藍移,要獲得較強的發光,需z要選擇合適的電流;隨著腐蝕時間的延長,多孔硅的發光峰位會i發生藍移;當f酸的濃較小q : 1 )時,峰位隨濃的增大表現為向i低能移動;而當f酸的濃較大河山時,峰位隨濃的增大則表現z為移向高能;多孔硅在空氣中氧化;其發光峰位發生藍移,而強i隨放置時間的延長而降低。
  13. The system could move forwards at the speed of 1 m / a or the patches shifted their sites each other, which led to the clone population and maintained its stable state in even large area

    同時,林緣擴散種群具有大、生產力高等特徵,但其生物量積累和稀疏過程與有性植物種群具有相同的規律。
  14. Tiger eye is a beautiful quartz gemstone that is found in western australia, south africa, united states, canada, india, namibia, and burma. the foremost important source of tiger eye is the mines in south africa. it is a lustrous yellow to brown color and has the look of glass with a white streak running through it

    它是界的青石棉或藍石棉被二氧化碳硅膠凝體強烈交代和膠結后所形成的呈棕、褐、黃、藍等顏色,具有絹絲光澤的緻堅硬的石英質巖石,因為成份已變成石英,其硬也上升為7 ,比重下降為3
  15. Part three : analyze the particular feature of population in shantou city and conclude it is in the stage of great - base, high - growth rate and large - scale family, big - density, great - shortage in qualified persons and great pressure in job - seeking

    第三部分:汕頭市獨特的人口特點分析。分析了汕頭市人口基數大、增長快、大、家庭規模大,文化素質低,生育壓力大,就業壓力大,目前仍處于高增長率的人口生產階段。
  16. The actual reproduction and artificial restoration density were the biggest with the treatment of irrigation ? soil preparation + natural regeneration, and the average numerical value was 13. 04 clumpes / m ^ 2 ranging from 3 clumpes / m ^ 2 to 28 clumpes / m ^ 2. the others were as follows : 1. 66 clumpes / m ^ 2 occurred in the treatment of unirrigation + soil preparation + artificial regeneration, ranging from 1 clumpe / m ^ 2 to 20 clumpes / m ^ 2 1. 11 clumpes / m ^ 2 occurred in the treatment of unirrigation + soil preparation + natural regeneration, ranging from 0. 5 clumpe / m ^ 2 to 17 clumpes / m ^ 2 0. 25 5 clumpe / m ^ 2 occurred in the treatment of unirrigation + break ground + natural regeneration, ranging from 0. 1 clumpe / m ^ 2 to 3. 0 clumpes / m ^ 2, and 0. 012 clumpe / m ^ 2 occurred in the treatment without disturbance

    以更新作為參數,其數值依次為:灌溉+整地十更新最大,平均為13 . 04叢/平方公尺,變化在3 28叢平方公尺之間;無灌溉+整地十人工種植恢復平均為1 . 66叢平方公尺,變化在1 20叢平方公尺之間;無灌溉十整地+更新恢復平均為1 . 11叢平方公尺,變化在0 . 5 17叢平方公尺之間;無灌溉+破土+更新平均為0 . 255叢平方公尺,變化在0 . 1 3 . 0叢平方公尺之間;無干擾更新平均為0 . 012叢平方公尺。
  17. It is obvious that in jialing river basin, many landscape components with good patch cohesion are distributed, forming a pattern of landscape fragmentation

    「溫帶落葉闊葉林」的斑塊間隔小,分佈緊,相似性程高,聚合性強,但連接性較低。
  18. Use a neutral - density filter or simply select a smaller aperture ( larger number aperture setting ) as necessary

    這時必須採用自然密度的濾光片或簡單地減小光圈(選用較大的光圈數值) 。
  19. Using above method with theories, we have computed the magnetic exchange coupling constants j values about ( vivo ) cr [ 1 ( cn ) 6 ] 2 / 3. 10 / 3h2o compound and [ mo2 ( cn ) 11 ] 5 compound, respectively. the j values are equal to - 42. 36cm - 1 and - 111. 46cm - 1, respectively

    後,分別對這兩種配合物分佈加以分析,兩種配合物中金屬離子上的成單電子幾乎是定域的,其旋極化佔主導作用。
  20. Under the frame of natural gradient algorithm, an ica algorithm based on adaptive kernel estimation is proposed, which can separate arbitrary mixed signals ( such as super - gaussian and sub - gaussian, symmetric and asymmetric signals )

    摘要在演算法的框架下,本文利用隨機變量概率函數非參數估計的適應核函數法,給出了一種能夠對任意混合信號(超高斯和亞高斯信號,對稱和非對稱分佈信號)進行盲分離的演算法。
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